Dry eye is a multifactorial disease, a general term for a variety of diseases characterized by various causes of abnormal tear quality or quantity, or abnormal kinetics resulting in decreased tear film stability, and associated with ocular discomfort and/or ocular surface histopathology. With the accelerated pace of people’s life and work, the popularity of high-tech video products, the incidence of dry eye disease is increasing year by year, and tends to be younger, and has received widespread attention, this dry eye disease is called video terminal dry eye disease. Preventive measures 1, when using the computer as far as possible to adjust the display to the appropriate display state. 2, work 1 h to rest 10 min, close the eyes or far away, do eye exercises, acupressure, promote blood circulation around the eyes, relieve eye muscle spasm tension and fatigue. 3, the appropriate position of the monitor is a key factor in reducing dry eye disease. Izquierdo et al. reported that a gaze angle of 14° or more below the horizontal line can significantly reduce the probability of eye discomfort. The eye-to-screen distance should be at least 25 inches (62.5 cm). The monitor should be tilted back at an angle to achieve the requirements of binocular stereo vision. The keyboard should be placed close to the screen position, so that the eye exposure area is small, to avoid dry eye syndrome. 4, the application of the visual protection screen. Visual protection screen can reduce the screen light reflection, reduce visual fatigue, increase the operator’s instantaneous eye rate, reduce the occurrence of dry eye. As far as possible, use the latest generation of LCD flat panel displays, whose images are softer and more realistic, reducing the stimulation of the eyes. 5, the environment should be comfortable. Soft light, good ventilation, moderate humidity, to avoid direct light on the screen caused by reflection, the use of blinds, curtains, etc. to adjust the outdoor light. Moderate humidity can reduce the evaporation of tears from the eye surface. 6, wearing appropriate glasses to reduce visual fatigue. Should be based on the operator’s use of video work distance and habits with glasses, rather than the regular far-use, myopic glasses, try not to wear corneal contact lenses. 7.Reasonable diet, sufficient sleep, and proper exercise can reduce the occurrence of video terminal dry eye disease. 8, VDT operators for pre-job education, to understand the computer to dry eye disease related to the impact of factors and prevention knowledge. 9, the use of Chinese and Western medicine. Can use artificial tears without preservatives, but also according to the Chinese medicine diagnosis and treatment for prevention. 10, can be appropriate with chrysanthemum, cassia dendrobium, wolfberry, chasteberry, Pueraria Mirifica, raw earth and other tea.